Perhaps the most unusual curry in s. H. Fernando jr. 's guide to sri lankan cuisine, rice & curry, is made of an ingredient more often found in a bowl of mixed nuts than in a steamy pot of coconut milk and chiles. Cashew nut curry is a wonderfully rich vegetarian curry, with soft, fatty cashews floating in creamy coconut milk spiced with curry leaves, lemongrass, coriander, and just enough chile heat.